115338156390 has 256 divisors, whose sum is σ = 332270346240. Its totient is φ = 28409771520.

The previous prime is 115338156347. The next prime is 115338156449. The reversal of 115338156390 is 93651833511.

115338156390 is a `hidden beast` number, since 1 + 1 + 5 + 3 + 3 + 8 + 1 + 5 + 639 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16410057 + ... + 16417083.

It is an arithmetic number, because the mean of its divisors is an integer number (1297931040).

Almost surely, 2^115338156390 is an apocalyptic number.

115338156390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115338156390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166135173120).

115338156390 is an abundant number, since it is smaller than the sum of its proper divisors (216932189850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115338156390 is a wasteful number, since it uses less digits than its factorization.

115338156390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164 (or 7158 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 115338156390 in words is "one hundred fifteen billion, three hundred thirty-eight million, one hundred fifty-six thousand, three hundred ninety".